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liq [111]
3 years ago
6

50 divided by 4= what

Mathematics
1 answer:
Igoryamba3 years ago
8 0
12.5.........................................
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nicole and adam are each saving money for a car. the total amount of money nicole will save is represented by the function f(x)=
Natalija [7]
They will have the same amount of money after 7 weeks.

We first set these equal to each other:
36+4x=x²+15

We want to gather all of the variables on one side.  Subtract 4x from both sides:
36+4x-4x=x²+15-4x
36=x²-4x+15

We want the equation to be equal to 0 to solve it, so subtract 36 from both sides:
36-36=x²-4x+15-36
0=x²-4x-21

We can factor this expression.  We want factors of -21 that sum to -4; -7(3)=-21 and -7+3=-4:
0=(x-7)(x+3)

Using the zero product property, we know that x-7=0 or x+3=0; this means x=7 or x=-3.  Since a negative number of weeks makes no sense, the answer is 7 weeks.
6 0
3 years ago
SELECT ALL THAT APPLY. In a population of 250 students, 60% are Whites, 20% are Latinos, 15% are Blacks, and 5% others. In a pro
Sophie [7]

In a proportionate stratified sample of 120, there are 72 Whites, 24 Latinos, 18 Blacks and 6  others.

Proportionate Stratified Sample

A proportionate stratified sample is one in which the size of the strata in the sample is proportional to the size of the strata in the population; in other words, the chance of selecting a unit from a stratum depends on the relative size of that stratum in the population.

Calculating the Proportionate Stratified Sample

The given percentage of -

Whites = 60%

Latinos = 20%

Blacks = 5%

Strength of the sample = 120

⇒ Number of Whites = 60% of 120

= 0.6 × 120

=72

Number of Latinos = 20% of 120

= 0.2 × 120

=24

Proportionate Stratified Sample of Blacks and Others

Count of Blacks = 15 % of 120

= 0.15 × 120

= 18

Count of others = 5% of 120

= 0.05 × 120

6

Thus, in a Proportionate Stratified Sample of 120, 72 are Whites, 24 are Latinos, 18 are Blacks, and 6 are others.

Learn more about Proportionate Stratified Sample here:

brainly.com/question/20692763

#SPJ4

6 0
2 years ago
Which of the following terms are like terms 17j3, 92m, 32j2, 12j, 10m2, 42j, 18j3, and 6m4? Choose all answers that are correct.
zhenek [66]
A. 12j and 42j
C. 17j³ + 18j³
This is because the variables and their powers are the same in these terms
4 0
3 years ago
Read 2 more answers
Please help me Estimate 258+565 I been needing help since yesterday
wariber [46]
It could be 820 thats rounded to the nearest tenth
if its supposedto be rounded to the nearest hundred its 800

3 0
3 years ago
A. 3/5<br> B. 3/10<br> C. 1/5<br> D. 1/2
Softa [21]
It’s definitely all of the above there all basiclalu the same factor answer it’s just with different numbers
5 0
2 years ago
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